Planing-machine.



A. A. HUSEBY.

PLANING MACHINE.

APPLICATION FILED SEPT. 2s. 1012.

Patented J an. 28, 1913.

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Patented Jan. 28, 1913.

A. A. HUSEBY.

PLANING MACHINE.

APPLICATION FILED SEPT. 2e, 1912.

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ALBERT A. HUSEBY, OF CHICAGO, ILLINOIS.

PLANING-MACHINE.

Specification of Letters Iatent. Patnbed J an. 28, 1913.

Application filed September 26, 1912. Serial No. 722,384.

1. Fig. 3 is a front elevation. Fig. 4; is a side elevation.

Referring to the drawings, 5 designates the front wall, G the rear wall,and 7 and 8 the side walls, respectively, of a rectangular housing thatcontains the feed mechanism, and is supported, preferably by wheels orrollers 9, upon a table or platform, the upper surface of which isindicated at 10, and within which table is journaled the To alt whom tmay concern Be it known that I, ALBERT A. HUsnnY, a citizen of theUnited States, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inPlaning-Machines, of which the following is a specification.

This invention relates to the general art of wood planing machines, andhas reference more particularly to that type of planing machine employedto effect a prelimiusual revolving planing cylinder (not nary levelingand flattening of more or less shown), the working edges of which eX-tend a slight distance above the surface 10 through a transverse slot inthe latter, all as well understood in machines of this type.

Beneath ythe front wall 5 is a feed opening 11 through which the work,such as the timbei 12 (Fig. 2), is passed through the machine. Saidopening is guarded by a vertically adjustable cover plate or gate 13that is slidable over' the outer surface of the front wall 5, and may besecured at any adjusted height by clamps 14 extending through slots 14in said gate.

Journalcd in and between the side walls 7 and 8 is a drive shaft 15.Loose on this shaft are a series of levers 16 arranged in mating pairs.The forwardly projecting arms of the levers of each pair are connectedat their forward ends by a shortshaft 17, on which is journaled a pairof feed-rolls 18 that are rigidly united laterally by an interposed spurgear 19 The rearward 1y extending arms of said levers are connected by arod' 20.

Fast on the drive shaft 15, between the hubs of the two levers of eachpair, is a spur gear 21 that meshes with and drives the spur gear 19.Journaled in and between the side walls 7 and 8 above the rearwardlyextending arms of the several levers 1G is a cam shaft 22, fast on whichare a series of cams Q3 that overlie and are adapted to depressinglyengage the rear ends of adjacent levers of adjacent pairs, as clearlyshown in Fig. l, each cam thus operating the right-hand lever of onepair and the left-hand lever of the adjacent pair. One end of the camshaft 22 projects beyond its bearing in the side wall 7 and has keyedthereto an operating lever 24 provide with a sliding detent 25cooperating with a segment rack 26 secured to the side wall 7. By themeans last described the several cams 23 can be forced downwardly torock the feed-roll levers 16 so as to raise irregular surfaces of boardsor timbers which, in drying out, may have become somewhat warped orbent. These machines comprise, essentially, a platform or table in whichis mounted a rotary planing tool, and a series of rolls mountedthereabove between which and the surface of the table the stock to beoperated upon passes, said rolls both feeding the stock over the planingtool and holding it down into engagement with the latter and the table.

My present invention has to do more particularly with the feed mechanismof such machines; and the main objects of the invention are to provide afeed mechanism which will be more certain and reliable in action, whichobject I accomplish mainly through an improved driving mechanism forsuch feed rolls; to provide a machine wherein the feed rolls shall beindependently forced against the work by spring pressure which can beregulated as desired; to provide a construction wherein the feed rollsVcan be quickly and easily adjusted to suit the thickness of theparticular work being operated upon; and, generally, to simplify andimprove both the 'structure and operation of machines of this character.

'Io these and other minor ends my invention consists in the novel partsand com-r bination of parts in a planing machine of the characterspecified all as hereinafter described and pointed out in the claims.

My invention, its mode of operation, and the advantages secured therebywill all be readily understood when considered in connection with theaccompanying drawings, in which- 4 Figure 1 is a top plan view of myimproved machine partly in horizontal section, and with the top cover ofthe housing removed to disclose interior parts. Fig. 2 is a transversesection on the line 2--2 of Fig.

kproj ecting from the that the spi'iiig' actuating lever 30 is in anrolls to the height required by the thickness of the work to be passedthrough the machine. Journaled in and between the side walls 7 and 3parallel with the shafts 15 and 22 is a third shaft 27, fast on whichare collars 28, to which are rig'idly secured downwardly extendingspring arms 29, free ends of which bear of the forwardly extending armsof the levers 16, each spring arm engaging adjacent levers of adjacentpairs in the same way that each of t-he cams 23 engages adjacent leversof adjacent pairs. One end of the shaft 27 projects beyond its bearingin the side wall 7, and has keyed thereon an operating lever 30 providedwith a sliding detent 31 engaging a segment rack 32 secured to the sidewall 7. By this means, after the several feed-rolls 18 have been raisedto the required height to accommodate the work 12, by' actuating thelever'30 the springs 29 are forced downwardly so as to exert spring'pressure upon the feed-rolls and cause the latter to grip or bite thework the work to be operated upon,

same time, gate 13, to a. sufficient height to admit the work. 14 arethen tightened, and the tuating lever 30 is then thrown forward to forcethe springs 29 hard down upon the outer ends of the feed roll levers, asshown in F ig'. 2. As the work is then pushed forward, such of the feedrolls as engage the work ride up over the upper' surface of the latter,bearing' thereon under the action of the springs 29, with sufiicientforce to feed the work through the machine.

12 with sufficient force to feed the latter I claimover the planingcylinder. Pivoted to thev 1. A feed mechanism for wood planing innersides of the side walls 7 and 8 are gatemachines, comprising, incombination, a

raising levers 33, the forwardly extending arms of which project throughholes 33 in the gate 13, and the rearwardly extending arms of whichunderlie at their free ends the outermost cams 23. By this means,assuming that the -clamps 14 have been loosened, the actuation of thelever 24 in a direction to Swing the cams 23 downwardly, raises the gate13 substantially in proportion to the elevation of the feed-rolls, sothat the` operator has only to tighten up the clamps 14 after settingthe feed-rolls for operation upon a given size of work.

Power may be applied to the drive shaft 15 in any suitable way; Figs. 1and 3 showing one practical form of power transmission. 34 designates abracket casting rigidly bolted to the outer side drive shaft, a series'of levers pivoted side by side between their ends, feed-rolls journaledon the forwardly extending arms of ends of said levers to effect araising movement of said feed-rolls, driving connections between saiddrive shaft and feed-rolls, and spring' mechanism for forcing saidfeed-rolls into gripping' engagement with the work.

2. A feed mechanism for wood planing machines, comprising, incombination, a drive shaft, a series of levers pivoted on said driveshaft between their ends, feedrolls journaled between the forwardlyextending arms of adjacent levers, cam mechanism engaging' the rear endsof said levers to effect a raising movement of said feedrolls, drivingconnections between said drive shaft and feed-rolls, and springmechanism for forcing said feed-rolls into gripping engagement with thework.

feed mechanism for wood planing machines, comprising, in combination, adrive shaft, a series of levers pivoted o-n said drive shaft betweentheir ends, feed-rolls journaled between the forwardly extending Thedrives a spur gear 39 keyed on a sleeve 4 (Fig. 1), which, in turn, isjournaled on a bearing stud 41 secured in and intermediate portion ofthe bracket casting 34. On the sleeve 40,

' engaging the rear ends of said levers to effect a raising' movement ofsaid feed-rolls, coperating spur gears on said drive shaft andfeed-rolls, respectively, for driving the latter from said drive shaft,and spring mechanism for forcing' said feed-rolls into gripping'engagement with the work.

4. A feed mechanism for wood planing machines, comprising, incombination, a drive shaft, a series of levers pivot-ed on said driveshaft between their ends, feed-rolls To protect the mechanism containedwithin the housing' or casing, as well as to cover plate 44 removablysecured to the side and end walls of the casing as by screws 45. Thehousing and mechanism contained therein and car- The clamps 9 cammechanism engaging the rear arms of adjacent levers, cam mechanism Ijournaled between the forwardly extending arms of adjacent levers, a camshaft disposed above and parallel with said drive shaft, a series ofcams fast on said cam shaft adapted to depress the rear ends of saidlevers, a hand lever on said cam shaft, driving connections between saiddrive shaft and feed-rolls, and spring mechanism for foreing saidfeed-rolls into gripping engagement with the work.

5. A feed mechanism for wood planing machines, comprising, incombination, a drive shaft, a series of levers pivoted on said driveshaft between their ends, feed-rolls journaled between the forwardlyextending arms of adjacent levers, a cam shaft disposed above andparallel with said drive shaft, a series of cams fast on said cam shaftadapted to depress the rear ends of said levers, an operating lever onsaid cam shaft, coperating spur gears on said drive shaft andfeed-rolls, respectively, for driving the latter from said drive shaft,and spring mechanism for forcing said feed-rolls into grippingengagement with the work.

6. A feed mechanism for wood planing machines, comprising, incombination, a drive shaft, a series of levers pivoted side by sidebetween their ends, feed-rolls journaled on the forwardly extending armsof said levers, cam mechanism engaging the rear ends of said levers toeffect a raising movement of said feed-rolls, driving connectionsbetween said driving shaft Vand feedrolls, a shaft disposed above andparallel with said driving shaft, a series of spring arms fast on saidlast named shaft and at their free ends engaging the forwardly eX-tending arms of said levers between adjacent feed-rolls, and a handlever on said last named shaft for forcing said springs downwardly.

7. A feed mechanism foi` wood planing machines, comprising, incombination, a housing having a feed opening in its front wall, avertically slidable gate guarding said feed opening, a series offeed-rolls and driving mechanism therefor in said housing, cam mechanismfor elevating said feed1olls to working height, and mechanism alsooperated by said cam mechanism for elevating said gate simultaneouslywith the elevation of said feed-rolls.

8. A feed mechanism for wood planing machines, comprising, incombination, a housing having a feed opening in its front wall, avertically slidable gate guarding said feed opening, a series offeed-rolls and driving mechanism therefor in said housing, cam mechanismfor elevating said feed-rolls to working height, and a pair of pivotedgate-raising levers engaging said gate at their forward ends and attheir rear ends engaged and actuated by said cam mechamsm.

ALBERT A. HUSEBY.

lVitnesses:

SAMUEL N. POND, HARRIET A. CRANNELL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

